<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			span {
				background-color: pink;
				/* margin: 30px 50px; */
				padding: 50px;
			}
		</style>
	</head>
	<body>
		<span>行内元素</span>
